Grill skirt



FIG. 1 is an isometric view within a grill environment;

FIG. 2 is an isometric view;

FIG. 3 is a front view;

FIG. 4 is a left side view;

FIG. 5 is a top view; and,

FIG. 6 is a bottom view.

The broken lines immediately adjacent the shaded areas represent the bounds of the claimed design while all other broken lines are directed to environment and are for illustrative purposes only; the broken lines form no part of the claimed design. 

CLAIM The ornamental design for a grill skirt, as shown and described. 